baber/WOPTO huggingface dataset:
Patent CA-2012191-A1 (CA)
Inventor: MATTHEWS ABRAHAM
IPC: D01F9/00
Filed: 1990-03-14
Abstract: Mesophase pitch centrifugally spun over a lip of the centrifugal rotor can be protected from coke and tar formation by conveying the molten pitch to the rotor's lip through channels within the rotor.
Patent CA-2012211-A1 (CA)
Title: Optical waveguides formed from multiple layers
Inventor: HAIDLE RUDY H
IPC: G02B6/00
Filed: 1990-03-15
Abstract: ABSTRACT OF THE DISCLOSURE    An optical waveguide for infrared light includes a series of metal layers.  A thick outer layer of nickel is provided for mechanical stiffness to make the structure self-supporting.  Thinner inside layers are also provided of metals such as silver, gold and copper which are good heat conductors.  Since nickel has a low thermal conductivity, the waveguide can be damaged due to heat build-up.  The layers of good conductors spread the heat efficiently to remove this possibility while the nickel continues to provide the necessary strength.  An inert inside layer of gold may also be provided.
Patent CA-2013302-A1 (CA)
Inventor: ANZAWA NORIO
IPC: F23N3/00
Filed: 1990-03-29
Abstract: A method and apparatus for burning a liquid fuel by  introducing  gas  into  the  liquid  fuel  through capillaries, a porous plate, cloth, a particle layer or the like to bubble the liquid fuel to control the fuel level and simultaneously by supplying combustion air separately to accomplish complete combustion.
Patent CA-2017359-A1 (CA)
Inventor: LENORMAND REGIS
IPC: H01Q13/18
Filed: 1990-05-23
Abstract: Une antenne de peau haute température, comprenant une antenne imprimée noyée dans une tuile de protection thermique et alimentée par couplage électromagnétique. L'invention trouve une application notamment dans le domaine des télécommunications spatiales.
Patent CA-2017768-A1 (CA)
Title: Method of manufacturing a continuous seamless tube of woven textile fabric material and a back-filling bag made from the continuous tube of material
Inventor: ROBINSON GORDON A
IPC: E21F15/02
Filed: 1990-05-29
Abstract: A B S T R A C T            A back-filling bag 38 comprises a tube of woven textile fabric material, at least one end 40 of the tube being closed e.g. by sewing or tying or binding, to form the bag 38. The tube of the bag 38 can be continuous seamless tube 10 according o the invention, manufactured by the method according to the invention. Instead, the continuous seamless tube of the back-filling bag 38 can be a tube which has been manufactured on a conventional shuttle weaving machine, which employs self-made turn-around edges joining the panels of the woven textile fabric material to form a tube. The woven textile fabric material of the tube 10 of the bag 38 comprises flat or non-bulked low twist, multifilament weft yarn.
Patent CA-2018162-A1 (CA)
IPC: F16H59/68
Filed: 1990-06-04
Abstract: A control system (104) for semi-automatically executing automatically and manually selected upshifts and downshifts of a mechanical transmission system (10) is provided.  The control system includes a central processing unit (106) for receiving input signals indicative of transmission input shaft (16) and output shaft (90) speeds and from a driver control console (108) indicative of manual selection of upshifts or downshifts from a currently engaged gear ratio, or manual selection of operation in an automatic preselect mode, and processing the same in accordance with predetermined logic rule to issue command output signals to a transmission actuator (112, 70, 96) to implement the selected shifts upon a manually caused torque break of the transmission and manual substantial synchronization of the transmission in the selected ratio thereafter.
Patent CA-2018322-A1 (CA)
Title: 1-(3-substituted benzyl)-3-halogeno-4-(1-halogenoalkyl)-2-pyrrolidinone derivatives and herbicides containing them
Inventor: ODA KENGO
IPC: C07D207/273
Filed: 1990-06-05
Abstract: ABSTRACT OF THE DISCLOSURE     1-(3-substituted benzyl)-3-halogeno-4-(1-halogenoalkyl)-2-pyrrolidinones of the general formula (I):                     (I) where X represents a hydrogen atom or halogen atom, Y and Z each represents a chlorine atom or bromine atom, and R represents an alkyl group with 2 to 4 carbon atoms, are herbicides useful in rice paddy fields to control weeds therein, especially Echinochloa crusgalli and can be produced subjecting the corresponding 3-dihalogeno compounds to dehalogenation to remove one of the halogen atoms or by cyclizing a 2,2-dihalogenoacetamide derivative represented by the general formula (II) under the presence of an appropriate catalyst;                                      (II)       (I) in which X, Y, Z and R respectively have the same meanings as described above.
Patent CA-2019727-A1 (CA)
Title: Cache support architecture
Inventor: CHISVIN LAWRENCE A P
IPC: G06F12/0815
Filed: 1990-06-25
Abstract: Abstract of the Invention A method for identifying data stored in a shared memory resource of a data processing system to support compatibility of the processing system with CPU's with write-through caches, and CPU's with write-back caches, and CPU's without caches over a common data bus.
Patent CA-2020523-A1 (CA)
Inventor: BEALKOWSKI RICHARD
IPC: G06F9/06
Filed: 1990-07-05
Abstract: ABSTRACT            An apparatus and method for loading BIOS stored on a direct access storage device into a personal computer system.  The personal computer system comprises a system processor. a system planar, a random access main memory, a read only memory, and at least one direct access storage device.  The read only memory includes a first portion of BIOS and data representing the type of system processor and system planar I/O configuration.  The first portion of BIOS initializes the system and the direct access storage device to read in a master boot record into the system from the direct access storage device.  The master boot record includes a data segment and an executable code segment.  The data segment includes data representing system hardware and a system configuration which is supported by the master boot record.          The first BIOS portion confirms the master boot record is compatible with the system hardware by verifying that the data from the data segment of the master boot record agrees with the system processor, system planar, and planar I/O   configuration.  If the master boot record is compatible with the system hardware, the first BIOS portion vectors the system processor to execute the executable code segment of the master boot record.  The executable code segment confirms that the system configuration has not changed and loads in the remaining BIOS portion from the direct access storage device into random access memory.  The executable code segment then verifies the authenticity of the remaining BIOS portion and vectors the system processor to begin executing the BIOS now in random access memory.  BIOS executing in random access memory then boots up the operating system to begin operation of the personal computer system.
Patent CA-2020655-A1 (CA)
Title: 2-aminopentanoic acid compounds and their use as immunosuppressants
Inventor: FUJITA TETSURO
IPC: C07C251/40
Filed: 1990-07-06
Abstract: ABSTRACT   There are disclosed 2-aminopentanoic acid compounds represented by the formula   wherein R is as defined in the specification, their optical isomers, their pharmacologically acceptable salts and their use as an immunosuppressant.
Patent CA-2022021-A1 (CA)
Title: Method of resolving cis 3-amino-4-(2-(2-furyl)eth-1-yl)-1-methoxycarbonylmethyl- azetidin-2-one
Inventor: WRIGHT IAN G
IPC: C07B57/00
Filed: 1990-07-26
Abstract: Abstract Cis .alpha..alpha./.beta..beta.-3-amino-[2-(2-furyl)eth-1-yl]-1-methoxycarbonylmethyl-azetidin-2-one is resolved via optically active tartaric acid.
Patent CA-2024819-A1 (CA)
Title: Reflector assembly for heating a substrate
Inventor: ANDERSON KIM A
IPC: F26B3/28
Filed: 1990-09-07
Abstract: ABSTRACT     A reflector for use in drying a substrate is disclosed, which houses infrared or ultraviolet lamps.  The reflector is designed to limit the path of light from each lamp to mitigate interference from one lamp to the next.  The reflector is cooled and the substrate is heated by convection.
Patent CA-2024895-A1 (CA)
Inventor: SIVAK ANDREW J
IPC: C07F7/18
Filed: 1990-09-07
Abstract: Silyl dervatives of 2-allyl phenol include compositions of the formula (see above formula) where R1, R2 and R3 are independently selected from alkyl and phenyl groups having up to about twelve carbon atoms. They may be made by silylating the corresponding hydroxyl compound. They are useful as comonomers for olefins to introduce functional sites by Ziegler-Natta catalyst systems.
Patent CA-2026290-A1 (CA)
IPC: H04N5/232
Filed: 1990-09-26
Abstract: Abstract of the Disclosure A moving object detecting system includes an image acquiring section, a feature extracting section, a background detecting section, a prediction parameter calculating section, a region estimating section, and a moving object determining section.  The image acquiring section has a mobile imaging system and acquires image frames sequentially obtained upon movement of the imaging system.  The feature extracting section extracts features of the acquired image frames.  The background feature detecting section detects a background feature from the features.  The prediction parameter calculating section obtains prediction parameters for predicting a motion of the background region upon movement of the imaging system in accordance with a positional rela-tionship between the correlated background features. The region estimating section estimates a region where features detected from image frames obtained by the mobile imaging system may have been present in an image frame of the immediately preceding frame by using the prediction parameters.  The moving object determining section determines whether a feature corresponding to the given feature is present in the estimation region, thereby checking the presence/absence of the moving object.
Patent CA-2027357-A1 (CA)
Title: Chromatographic separation of zirconium isotopes
Inventor: LEE ERNEST D
IPC: B01D59/30
Filed: 1990-10-11
Abstract: The isotopes of zirconium can be partially or completely separated by loading an aqueous solution of an ionic compound of zirconium onto a cationic exchange resin which serves as the stationary phase of a chromatograph, eluting the compound with an aqueous acid and collecting distinct elution volumes representative of each isotope. In a preferred embodiment, the eluent is a strong mineral acid, such as hydrochloric acid and the chromatograph is of a type, such as a continuous annular chromatograph that it can be operated in a continuous, steady state manner.
Patent CA-2028920-A1 (CA)
Title: Stretch-reducing mill for rolling tubes
Inventor: PALMA VINCENZO
IPC: B21B35/00
Filed: 1990-10-30
Abstract: ABSTRACT OF THE DISCLOSURE      This  mill  comprises  a plurality  of  rolling  stands  laid side-by-side  between  an  input  stand  and  an  output  stand. A first  group of  stands  adjacent  to one another  is  next  to the  input  stand  and  a  second  group  of  stands  adjacent  to one another  is  next  to  the  output  stand.  The  first  group of  stands  is  operated through a differential  drive with two motors;  the  second  group of  stands  is  driven by  independent single motors.
Patent CA-2031027-A1 (CA)
Title: Substituted benzothiazolinones, preparation process thereof and pharmaceutical compositions containing the same
Inventor: LESIEUR ISABELLE
IPC: A61P9/00
Filed: 1990-11-28
Abstract: Compounds of general formula (I):   <IMAGE> (I)  in which: R1 represents a hydrogen atom or a lower alkyl group, and R2 represents a substituted or unsubstituted alkyl, a phenyl or a substituted or unsubstituted heteroaryl, their enantiomers, diastereoisomers and epimers and their addition salts with a pharmaceutically acceptable base when R1 represents a hydrogen atom or when R2 comprises a carboxylic acid group. Medicinal products.
Patent CA-2036610-A1 (CA)
Inventor: CANTILLO JOSE
IPC: C07C291/02
Filed: 1991-02-19
Abstract: ABSTRACT OF THE DISCLOSURE     ALPHA-(2,4-DIHYDROXY)PHENYL N-PHENYL NITRONE AND ITS USE IN THE MODIFICATION OF DIENE CONTAINING POLYMERS     The present invention relates to a mononitrone of the formula:       (I) The amount of alpha-(2,4-dihydroxy)phenyl N-phenyl nitrone which is used in the modification of a diene containing polymer may range from about 0.1 to about 30 percent by weight of said polymer.  The modified polymers exhibit improved tear properties as measured by Strebler adhesion values.
Patent CA-2037748-A1 (CA)
Inventor: DUFF DONALD G
IPC: H04J3/07
Filed: 1991-03-07
Abstract: Improved jitter performance is realized in a desynchronizer for obtaining an asynchronous digital signal, e.g., a DS3 signal, from a received synchronous digital signal, e.g., a Synchronous Optical Network (SONET) STS-1 signal. The improved jitter performance results from the use of a unique adaptive bit leaking arrangement in conjunction with a digital phase locked loop and synchronizing elastic store. An estimate of a bit leaking interval is adaptively obtained based on the intervals between a sequence of consecutive pointer adjustments in the received signal, i.e., the STS-1 signal. In one embodiment, the bit leaking interval estimate is obtained by employing a moving average of the intervals between the pointer adjustments. The desired bit leaking is effected by employing an accumulator which is responsive to the received pointer adjustments and a representation of the estimated bit leaking interval, in conjunction with a comparator.  The accumulator output count is supplied to the comparator along with the current write address of the elastic store. Leak bits are supplied as an output from the comparator one at a time to the phase locked loop which, in turn, generates a smooth read clock for the elastic store.
Patent CA-2038308-A1 (CA)
Title: Games apparatus
Inventor: WOLFGRAMM MAXIMILLIAN G
IPC: A63F9/14
Filed: 1991-03-14
Abstract: ABSTRACT             A games apparatus is provided for two or more participants arranged into opposing sides.  The apparatus  comprises a playing surface and playing pieces wherein the playing surface is in cross-section irregular and provides participants with a fixed three-dimensional terrain, the playing pieces are movable across the playing surface in a substantially horizontal or substantially vertical direction and the outcome of the game is determined by one side successfully directing its playing pieces against those of the opposing side subject to any obstacles created by the terrain and in accordance with the rules of the game.  A method of playing a game, is also provided, the method being such that two or more participants or opposing sides play a game of skill or a game of chance or a game combining the two.
Patent CA-2040372-A1 (CA)
Title: Powder lubricant for plunger device
Inventor: HANANO TAKASHI
IPC: C10M111/00
Filed: 1991-04-12
Abstract: The present invention relates to a powder lubricant for a plunger device used in a diecasting machine.  The powder lubricant is comprised of a mixture of a powdered or granulated lubricant base material composed of an inorganic compound used for a lubricant in a solid form, with an organic compound providing an adhesion ability to the lubricant base material.  Both have a powdered or granulated form or have a form in which the lubricant base material is covered by the organic compound.  The effects of the invention are that the occurrence of defects inside diecast products can be reduced, dangers such as fire etc. and environmental pollution can be reduced, and the sliding of the plunger can be made smooth to thereby improve the workability.
Patent CA-2040630-A1 (CA)
IPC: E04B2/74
Filed: 1991-04-17
Abstract: A panel connector arrangement for office furniture demountable wall panel space divider systems wherein the indivi-dual panels are of the familiar quadrilateral configuration and include at each of the panel side edges a rectilinear side frame member in the form of a side channel extending continuously between the upper and lower ends of the panel and defining a planar web disposed between a pair of side frame member planar shoulders, with the connector arrangement involved being for use in removably joining to a free standing or fixed upright such panel an unattached such panel, and free of any post or other standard between such panels that are in coplanar relation, with the connector arrangement involved comprising a clamp device having a pair of relatively movable bodies forming op-posed clamping heads shaped and positioned relative to indexing apertures formed in the upper ends of the side frame members of all the panels to be so secured, a discrete bottom seating hook, and associated indexing apertures formed in such panel side frame members adjacent the lower end of same for seating the free unattached panel on the free standing or fixed panel and swinging the unattached panel so that its side frame shoulders seat against the side frame shoulders of the fixed panel, with the clamp device heads being formed for disposing the clamp device heads in clamping relation to the panel side frames involved longitudinally thereof, whereby such panel side frames are anchored to each other, and the side frame of the panel being mounted is clamped against the seating hook.
Patent CA-2043447-A1 (CA)
Title: Process for the preparation of diamond
Inventor: HOSOYA IKUO
IPC: C23C16/27
Filed: 1991-05-29
Abstract: ABSTRACT OF THE DISCLOSURE     An interrupting layer is formed on the surface of a substrate with inorganic  fine powders  and a surface of  the interrupting  layer  is  contacted  with  gases  obtained  by exciting raw material gases containing carbon sources gases, followed  by  the  separation of  the  diamond  synthesized  from the substrate. The use of the interrupting layer composed of the  inorganic  fine  powders  allows  ready  separation of  the diamond  from  the  substrate  and  the  diamond  separated  is suitable for diaphragms for speakers,  heat conductive plates, cutting tools,  semiconductors,  etc.  by appropriately choosing shapes of the substrate.  Further,  the resulting diamond film is  pulverized,  thereby  yielding  diamond  powders  which  are useful for abrasive tools, cutting tools, etc.
Patent CA-2049809-A1 (CA)
Title: Method of surface hardening orthopaedic implant devices
Inventor: SHETTY H RAVINDRANATH
IPC: C23C8/24
Filed: 1991-08-23
Abstract: A method of surface hardening titanium orthopedic implant devices, and a titanium orthopedic implant device prepared by the disclosed method. An orthopedic implant device made of pure titanium or a titanium alloy, such as Ti-6Al-4V (ELI) is exposed to molecular nitrogen gas at a process temperature and for a process time duration sufficient to enhance surface hardness and wear resistance properties, without the formation of a measurable TiN layer that tends to increase surface roughness and diminish wear resistance properties. The process temperature is in the range of 750°F, to 1300°F., preferably about 1100°F, and the process time duration at the preferred process temperature is approximately 8 hours. The hardened surface of the titanium implant occurs primarily due to solid solution hardening of the titanium with nitrogen by dissolution.
Patent CA-2050394-A1 (CA)
Title: Colorimetric method and reagent for the assay of lithium in a test sample
Inventor: CZECH BRONISLAW P
IPC: G01N33/84
Filed: 1991-08-30
Abstract: A chromogenic cryptand found to be especially selective in the determination of lithium in blood of the general formula (I):                      (I) where:  n = 1 or 2, R1 and R2, same or different, are hydrogen, lower alkyl, lower alkenyl, or lower alkylidene; and Q is a chromogenic moiety capable of providing a detectable response upon complexation of said compound with lithium ion and has the structure:       wherein:  X is CH, C-OH or N; and Z is p-nitrophenylazo, 2,4-dinitrophenylazo, 2,4,6-trinitrophenylazo, p-nitrostyryl, p-benzoquinonemonoimino, bis-(4-dimethylaminophenyl) hydroxymethyl, 3-phenylisothiazolyl-5-azo, thiazolyl-5-azo; or isothiazolyl-5-azo.
Patent CA-2052460-A1 (CA)
Title: Method for monitoring fiber tension
Inventor: SMITH GREGORY E
IPC: G01L1/00
Filed: 1991-09-30
Abstract: A non-contact method for monitoring the tension in an optical waveguide fiber during drawing is provided. The motion of the fiber is sensed in a direction transverse to the direction in which the fiber is moving. The sensed motion is analyzed to determine a plurality of frequency components thereof, each frequency component having a magnitude, and one of the components constituting the maximum magnitude component. The frequency of the maximum magnitude component is doubled to obtain a doubled frequency. The presence of a frequency component near the doubled frequency is ascertained to verify that the maximum magnitude component is the principal harmonic frequency of motion of the fiber. The tension in the fiber is then determined Pram the verified principal harmonic frequency component.
Patent CA-2056573-A1 (CA)
Title: Impact modification of polyimides
Inventor: HELLSTERN ANNMARIE
IPC: C08L79/08
Filed: 1991-11-28
Abstract: IMPACT MODIFICATION OF POLYIMIDES                       Abstract The impact resistance of polyimides is improved by the addition of impact modifiers comprising, as a first stage, an elastomeric polydiorganosiloxane optionally polymerized simultaneously with but separately from one or more vinyl monomers, and as at least one grafted subsequent stage a polymer or copolymer of acrylonitrile, methacrylonitrile, a vinyl aromatic compound,  (meth)acrylic acid, alkyl (meth)acrylate or (meth)acrylamide monomer.  The invention is useful in the extrusion of large parts, where the polyimide must be maintained at a high temperature for a prolonged period of time.
Patent CA-2057161-A1 (CA)
Title: Mattress system
Inventor: OTTIGER ERNST
IPC: A47C27/06
Filed: 1991-12-06
Abstract: ABSTRACT   The invention relates to a generic mattress system which is easily adjustable todiffering and space varying stresses with limiting spring paths. It has a top mattress and a bottom mattress with supporting elements connected to a frame and located in the plane of a frame. The elements are in U-shape and bear elastic support elements fastened to cross-pieces. The upper mattress can also have spring elements between the upper and lower support, with each spring element having a section of elastic material.
Patent CA-2059910-A1 (CA)
Title: Adjustable drilling mechanism
Inventor: LEE PAUL
IPC: E21B7/08
Filed: 1992-01-23
Abstract: A down hole drilling tool activating mechanism is provided which will adjustably activate tool elements such as stabilizer pads by means of a mandrel which will move vertically against a bias spring and has inclined surfaces to bear on the inside of the adjustable pads creating variable diameters. The mandrel has a series of flexible fingers which engage the main body of the tool. A male spline element is provided which moves vertically within the body of the tool so that a portion thereof moves between a position in which it engages the fingers and forces them into engagement thereby locking the mandrel against vertical movement and a second unlocked position in which the portion is removed from the fingers allowing them to flex and allowing them to disengage the body so that the mandrel may move vertically changing the adjustment of the tool. An improved version may be provided with means to equalize pump pressure between the inner bore and outer surface of the male spline element to prevent unwanted relative movement due to increased pump pressure.